To those who don't want the truth about Kennedy's assassination to become known, the very repetition of a charge lends it a certain credibility, since people have a tendency to believe that where there's smoke, there's fire.
Sometimes, when you work with directors who have done it a lot and are established in the business and know the game, there are all these rules that they have. First-time directors will allow you to come in with choices. They're not so jaded by actors that they're like, 'Ugh, just do your job, man.'